You need to lift a piano to the third floor. Which simple machine would not work?
Pulley
Lever
Inclined plane
Wedge
Wedge : Knife :: Wheel and axle : ?
Nail
Axe
Screw
Screw driver
Comparing a class II lever to class I lever the mechanical advantage is :
Lesser
Equal
Greater
Half
Match the following.
(i) - d, (ii) - b, (iii) - c, (iv) - a
(i) - b, (ii) - c, (iii) - d, (iv) - a
(i) - c, (ii) - a, (iii) - d, (iv) - b
(i) - c, (ii) - d, (iii) - a, (iv) - b
The number of simple machines identified by the scientists is :
6
7
5
10
Which of the following is not considered as a simple machine ?
Wheel barrow
A triangular shaped tool with a sharp edge is called :
Wheel and axle
A screw driver can be used to open a can of paint. In this situation, the screw driver is being used as a :
wheel and axle
screw
lever
inclined plane
The body on which work is done called :
Fulcrum
Load
Effort
Efficiency
Class I lever : Beam balance :: Class II lever : ?
Pliers
Sea-saw
A forearm
